What's the best way to master Position Based Letter Series quickly?

Master Position Based Letter Series by understanding the core concepts first, practicing regularly with our worksheets, and applying the shortcut techniques provided.

Position Based

Position Based problems involve letter sequences determined by mathematical operations on their position numbers. For example, the 1st letter, 3rd letter, 5th letter of the alphabet, or letters at positions that are multiples of a number. These problems test your understanding of alphabet positions and arithmetic sequences.

10Worksheets

200+Practice Questions

IntermediateDifficulty

2-3 hoursHours to Master

What You'll Learn

Introduction & Overview Why This Matters How to Solve Pro Tips & Tricks

Shortcut Methods Common Mistakes Practice Worksheets Exam Importance

Introduction to Position Based

Prerequisites

Alphabet position knowledge (A=1 to Z=26) Arithmetic progression understanding Multiples and factors Basic pattern recognition

Why This Matters: Position Based problems appear in 1-2 questions in SSC CGL and Banking PO exams. They test mathematical reasoning applied to alphabet positions.

How to Solve Position Based Problems

Step 1: Recognize that the series is based on position numbers

Step 2: Identify the mathematical rule (e.g., every 3rd letter, position = 2n, etc.)

Step 3: Determine the pattern of positions (1, 3, 5... or 2, 4, 6...)

Step 4: Calculate the next position using the same rule

Step 5: Convert the position number back to a letter

Step 6: Handle positions beyond 26 by wrapping or stopping

Step 7: Verify the pattern for all given terms

Pro Strategy: Convert letters to position numbers. Look for patterns like even numbers, odd numbers, multiples, or arithmetic progressions. The position pattern determines the letter pattern.

Example Problem

Example: Find the next letter: B, D, F, H, ___ Solution: Step 1: Positions: B=2, D=4, F=6, H=8 Step 2: Pattern: even positions (2,4,6,8...) Step 3: Next position = 10 Step 4: Position 10 = J Answer: J

Pro Tips & Tricks

Even positions: B, D, F, H, J, L, N, P, R, T, V, X, Z
Odd positions: A, C, E, G, I, K, M, O, Q, S, U, W, Y
Multiples of 3: C, F, I, L, O, R, U, X
Multiples of 4: D, H, L, P, T, X
Positions can follow arithmetic progression with any common difference
Some problems use formulas like position = 2n + 1

Shortcut Methods to Solve Faster

Even positions = every 2nd letter starting from B

Odd positions = every 2nd letter starting from A

Multiples of 3 = every 3rd letter starting from C

The position pattern determines the letter pattern directly

Common Mistakes to Avoid

Confusing position numbers with letter values

Using A=0 instead of A=1 (off by one errors)

Not recognizing the position pattern

Forgetting that Z=26 is the maximum position

Practice Worksheets

Practice makes perfect! Work through these worksheets to master Position Based. Each worksheet contains 20 questions with detailed explanations. Start from Worksheet 1 and progress through increasing difficulty levels.

Worksheet 1 Beginner Beginner level - Perfect for building foundational understanding

Worksheet 2 Beginner Beginner level - Perfect for building foundational understanding

Worksheet 3 Beginner Beginner level - Perfect for building foundational understanding

Worksheet 4 Intermediate Intermediate level - Test your understanding with moderate difficulty

Worksheet 5 Intermediate Intermediate level - Test your understanding with moderate difficulty

Worksheet 6 Intermediate Intermediate level - Test your understanding with moderate difficulty

Worksheet 7 Advanced Advanced level - Challenge yourself with complex problems

Worksheet 8 Advanced Advanced level - Challenge yourself with complex problems

Worksheet 9 Advanced Advanced level - Challenge yourself with complex problems

Worksheet 10 Advanced Advanced level - Challenge yourself with complex problems